Title : Efflux ratio cannot assess P-glycoprotein-mediated attenuation of absorptive transport: asymmetric effect of P-glycoprotein on absorptive and secretory transport across Caco-2 cell monolayers.

Pub. Date : 2003 Aug

PMID : 12948018






1 Functional Relationships(s)
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1 For structurally diverse P-gp substrates (acebutolol, colchicine, digoxin, etoposide, methylprednisolone, prednisolone, quinidine, and talinolol) apparent Km was approximately 3 to 8-fold greater in absorptive vs. secretory transport direction, whereas apparent J(max) was somewhat similar in both transport directions. Colchicine ATP binding cassette subfamily B member 1 Homo sapiens